Many computer algebra systems permit the evaluation of Riemann sums for left end point, right end point, or midpoint evaluations of the function. Using such a system in Problems 35-38, evaluate the 10-subinterval Riemann sums using left end point, right end point, and midpoint evaluations
(a)

(b)

(c)

(x3 +1) dx um tan x dx o s cos x dx